胎次和分娩季節(jié)對PIC母豬繁殖性能的影響
發(fā)布時間:2018-03-18 04:19
本文選題:PIC母豬 切入點:胎次 出處:《畜牧獸醫(yī)雜志》2017年03期 論文類型:期刊論文
【摘要】:為了研究胎次和分娩季節(jié)與PIC母豬繁殖性能的關(guān)系,選取楊凌本香農(nóng)業(yè)產(chǎn)業(yè)集團有限公司三個PIC父母代種豬場的2014和2015年共1.2萬頭母豬的生產(chǎn)記錄,統(tǒng)計不同胎次和分娩季節(jié)對母豬繁殖性能的影響。結(jié)果表明,第8胎母豬繁殖性能顯著低于其它胎次(P0.05),可以從第8胎開始淘汰母豬。除木乃伊胎受季節(jié)影響顯著外,其它繁殖性能不受季節(jié)影響。高溫應激對木乃伊胎的形成影響顯著,可以通過夏季降溫等措施降低木乃伊胎的發(fā)生率。
[Abstract]:In order to study the relationship between birth order and parturition season and reproductive performance of PIC sows, 12,000 sows were recorded in three PIC parent breeding farms of Yang Ling Benxiang Agricultural Industry Group Co., Ltd in 2014 and 2015. The results showed that the reproductive performance of the eighth sow was significantly lower than that of the others (P0.05N), and the sows could be eliminated from the 8th embryo, except the mummy fetus, which was significantly affected by the season. Other reproductive performance was not affected by seasons. High temperature stress had a significant effect on the formation of mummies and could reduce the incidence of mummies by cooling down in summer.
【作者單位】: 西北農(nóng)林科技大學動物科技學院;楊凌本香農(nóng)業(yè)產(chǎn)業(yè)集團有限公司;
【分類號】:S828
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